Vulnerability CVE-2015-1607
Published: 2019-11-20   Modified: 2019-11-24

Description:
kbx/keybox-search.c in GnuPG before 1.4.19, 2.0.x before 2.0.27, and 2.1.x before 2.1.2 does not properly handle bitwise left-shifts, which allows remote attackers to cause a denial of service (invalid read operation) via a crafted keyring file, related to sign extensions and "memcpy with overlapping ranges."

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Multiple issues in GnuPG found through keyring fuzzing (TFPA 001/2015)
Hanno Bock
14.02.2015

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Gnupg -> Gnupg 
Canonical -> Ubuntu linux 

 References:
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=2183683bd633818dd031b090b5530951de76f392
http://www.openwall.com/lists/oss-security/2015/02/13/14
http://www.openwall.com/lists/oss-security/2015/02/14/6
http://www.securityfocus.com/bid/72610
http://www.ubuntu.com/usn/usn-2554-1/
https://blog.fuzzing-project.org/5-Multiple-issues-in-GnuPG-found-through-keyring-fuzzing-TFPA-0012015.html
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000361.html
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000362.html
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html
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